Supporting structure



No Model.)

H.PETTERSON.

SUPPORTING STRUGTUR E.

o. 524,347. Patented Aug. 14, 1894.

BY Q9 W TTORNEY 9 UNITED STATES PATENT OFFICE.

HUGO PETTERSON, OF COLUMBUS, OHIO.

SUPPORTING STRUCTURE.

SPECIFICATION forming part of Letters Patent No. 524,347, dated August 14, 1894.

Application filedDecemher 20, 1893- Serial No. 494,196. (No model.)

To all whom, it may concern:

Be it known that I, HUGO PETTERSON, a

,citizen' of the United States, residing at C0- lumbus, in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Supporting Structures, of which the following is a specification.

My invention relates to the improvement of supports for bridge or building floors and the objects of my invention are to provide a support of this class of superior construction and arrangement of parts; and to produce improvements in details of construction which will be more specifically pointed out herein- These objects I attain in the manner modification of the same.

Similar letters refer to similar parts th roughout the several views.

In constructing my improved support I provide at corresponding intervals parallel I- beams or other well known forms of beams a and upon the upper side of each of said beams is supported and secured longitudinally as hereinafter described a seat bar or plate I). In the construction of this seat bar, I preferably form the same, as shown in Fig. 1 of the drawings with a central longitudinal rib or projection c, the latter having inclined sides which taper toward their upper ends. As indicated at c. I also cause the upper surface of the barb to incline or slope up Wardly from opposite sides of the central rib piece 0. The seats thus formed on opposite sides of the central tongues or ribs 0 of the seat bars b are adapted, as shown in the drawings, to receive the ends of upwardly bowed arch bars (1, the bow or curvature of the latter resulting in the ends thereof fitting against the inclined sides of the seat bar ribs 0, and in a fitting contact of the under sides of said arch barends with the inclined or beveled upper face of said seat bars.

As indicated in Fig. 2 of the drawings the arch bars 01 of which there may be any desired number are arranged in parallel positions at equidistant points and. preferably with separating spaces between them equiv alentto their width. In order to retain the ends of said arch bars in the seats above described, I provide above each of the seat bars binding plates eof equal width with said seat bars. The central portion of the underside of each of these binding plates bears, as shown, upon the upper side of the central rib or tongue 0 of the seat block and on opposite sides of said central bearingportion said under surface is inclined or beveled outward and upward to conform to the curvature of the upper surfaces of the archbar ends upon which said binding plate rests. By means of suitable vertical rivets or bolts f which pass through said binding plates between the arch bar ends and through the head flanges of the III-beams a the arch bar ends so seated are firmly held in place.

As shown at g a bed of concrete or other suitable or similar substance may be supported above the arches and joints thus formed and above said concrete may be arranged one or' more layers of paving blocks g-. However, I do not desire to confine my self to the construction of the floor to be supported, as any suitable or desirable material may be employed.

As indicated in the drawings, I may form the arch bars 01 with beveled sides or flaring surfaces this form serving to better support a plastic mass from above.

As indicated in Fig. 5 of .the drawings, I may substitute for the seat plate or bar I) a seat plate 72., the latter being bolted or riveted and being formed with a substantially central channel against the opposite walls of which may abut the ends of the arch bars d,

as indicated at h to the top of'the I-beam' the seatedends of the latterbeing so arranged therein as to result in the bar endsof one arch crossing the bar ends of the adjoining arch. In this latter construction I also employ a binding plate which is indicated at k,

the latter being slightly angular in cross section and having its outer portions or wings outer sides with an angular seat or depression '6 which is adapted to receive, as shown, the end of one of the arch bars b. The arch bar ends thus supported are firmly held in place by means of clamping cover plates d which bear, as shown, both upon the upper sides of the seated end portions of said arch bars and upon the upper sides of said seat bar and which are secured in place by means of suitable bolts d From the construction herein described vit will be seen that a strong, durable and effective arch support is formed for a fiooror roadway' and that by the use of the parallel arch bars which I have described the necessity of employing buckle plates is entirely obviated.

It will be observed that the means shown idly and effectually produced and at a reasonable cost of manufacture. v

Having now fully described my lnvention,

What I claim, and desire to secure by Letters Patent, is-

In a supporting structure the combination with vertical and parallel supports a, seat bars or plates 1) upon said supports, depressed seats and shoulders formed in said seat bars adapted to receive and form abutments for the end of arch bars as described, of parallel arch bars d resting in said seats and clamping plates c having their under sides conforming to the curvature of said arch bar ends upon which they rest, and bolts or rivets connecting said clamping plates, seat plates and supporting bars, substantially as and for the purposespecified.

HUGO PETTERSON. In presence of- G. O. SHEPHERD, BARTON GRIFFITH. 

